I've occasionally heard about this system in the past, but have now taken the time to actually read about it. It looks like something I would like, and futhermore I can program for it easily.
If I were to get one, I would create a GP2X port of "Stompy's Revenge". I know if I were to develop for the GP2X, my possible audience wouldn't be massive. However, the fact that people would actually be able to play my games using controls that are designed for games is enough for me.
So do any of you own a GP2X? If so, is it worth a purchase?